/*
 * Copyright 2007 Rob Nielsen
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * 	http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.googlecode.proxymatic.apps.autoboundary.handlers;

import com.googlecode.proxymatic.apps.autoboundary.AutoboundaryLookup;
import com.googlecode.proxymatic.core.handlers.method.FindingParameterModifier;

public class AutoboundaryReplaceWithRealParameterModifier implements FindingParameterModifier {
    private final AutoboundaryLookup autoboundaryLookup;
    private final AutoboundaryWrapperUnwrapper autoboundaryWrapperUnwrapper;

    public AutoboundaryReplaceWithRealParameterModifier(AutoboundaryLookup autoboundaryLookup, AutoboundaryWrapperUnwrapper autoboundaryWrapperUnwrapper) {
        this.autoboundaryLookup = autoboundaryLookup;
        this.autoboundaryWrapperUnwrapper = autoboundaryWrapperUnwrapper;
    }

    public Class[] modifyParameterTypes(Class[] targetParameterTypes) {
        for (int i = 0; i < targetParameterTypes.length; i++) {
            Class parameterType = targetParameterTypes[i];
            if (autoboundaryLookup.isAutoboundaryClass(parameterType)) {
                targetParameterTypes[i] = autoboundaryLookup.getRealClassForInstance(parameterType);
                autoboundaryWrapperUnwrapper.ensureHandled(parameterType, targetParameterTypes[i]);
            }
        }
        return targetParameterTypes;
    }

    // FIX ROB Watch for dup between modifyParameterTypes and modifyParameters
    public Object[] modifyParameters(Object[] fromParameters, Class[] fromParameterTypes, Class[] toParameterTypes) {
        if (fromParameters != null) {
            for (int i = 0; i < fromParameters.length; i++) {
                if (autoboundaryLookup.isAutoboundaryClass(fromParameterTypes[i])) {
                    fromParameters[i] = autoboundaryWrapperUnwrapper.getObject(toParameterTypes[i], fromParameterTypes[i], fromParameters[i]);
                }
            }
        }
        return fromParameters;
    }
}
